Basic Info Material: Polyimide Application: Digital Products, Computer with LCD Screen, Aviation and Aerospace, Display Flame Retardant Properties: V0 Base Material: Copper Brand: JC Stifferer: Steel Stiffer Transport Package: Vacuumize HS Code: 8534009000 Structure: Double-Sided FPC Combination Mode: Adhesive Flexible Plate Conductive Adhesive: Conductive Silver Paste Processing Technology: Electrolytic Foil Insulation Materials: Epoxy Resin Finished Surface: Immersion Gold Trademark: EVERPCB Origin: China Product Description Material:FR-4 thickness:1mil copper:ED 1/2 oz cover layer:1/2mil PI stiffener :5mil finished surface:immersion gold Product capability Layers Maximum Layer Count 1~32 tolerance Size Maximum shipping Panel Size 600mmx550mm +/-0.15mm Board Thickness Minimum Board Thickness 0.4mm (4L)0.6mm (6L) +/-0.1mm Maximum Board Thickness 3.6mm +/-10% Copper Thickness 0.5~5 oz Via Holes Minimum Via 0.2mm PTH +/-0.075mm Buried Vias Yes NPTH +/-0.05mm Blind Vias Yes Ratio Maximum Aspect Ratio 10:01 Trace Minimum Line Width (Internal) 0.075mm The tolerance followed by IPC-6012 Minimum Line Spacing (Internal) 0.075mm Minimum Line Width (External) 0.075mm Minimum Line Spacing (External) 0.075mm Surface Finish Selective Soft Gold (MCM) 0.025~0.1 um Selective Hard Gold (SIMM) 0.025~1.0 um Immersion Gold (Ni/Au) 0.025~0.1 um HASL min. 2.5 um Lead Free HASL min. 2.5 um OSP (Entek CU106A) 0.2~0.5 um Immersion Tin min. 0.625 um Immersion Silver min. 0.175 um Carbon Ink Yes Other Finish Peelable mask Material Composite CEM-1 CEM-3 Glass Fiber FR-4 High Tg FR-4 Other Materials Aluminum, Polyimide Solder Mask LPI Yes UV Yes Thermal Yes Reliability Controlled Impedance/tolerance Yes +/- 10% Ionic Contaminant Yes max. 1.56 ug/cm2 Microsection Yes Solderability Test Yes Hi Pot Test Yes 500~1000V Certificate ISO 9000 Yes ISO 14000 Yes TS 16949 Yes UL Yes Found Circuit, one professional Printed Circuit Board Manufacturer in China, can supply PCB with high quality and pretty competitive price to you. And we have passed ISO9001,ISO14001,TS16949, SGS and UL certificates,hope to have a cooperation with you.